View source for Template:Note/styles.css

.note {
	background-position: left 7px top 50%;
	padding: 0.5em 0.5em 0.5em 40px;
	margin: 0.5em 0;
	overflow: hidden;
	background-color: #f8f9fa;
	color: #333;
	background-repeat: no-repeat;
	border: 1px solid #ddd;
}
.note-inline {
	display: inline-block;
	vertical-align: middle;
}
.note-info {
	background-color: #eaf3ff;
	color: #333;
	/* [[File:OOjs_UI_icon_information-progressive.svg]] */
	background-image: url(https://upload.wikimedia.org/wikipedia/commons/e/ec/OOjs_UI_icon_information-progressive.svg);
	background-size: 25px;
	border-color: #a3caff;
	padding-left: 40px;
	min-height: 25px;
}
.note-reminder {
	background-color: #fff9ea;
	color: #333;
	/* [[File:OOjs_UI_icon_lightbulb-yellow.svg]] */
	background-image: url(https://upload.wikimedia.org/wikipedia/commons/a/a8/OOjs_UI_icon_lightbulb-yellow.svg);
	background-size: 25px;
	border-color: #fc3;
	min-height: 25px;
}
.note-warn {
	background-color: #fff9ea;
	color: #333;
	/* [[File:OOjs_UI_icon_alert-warning.svg]] */
	background-image: url(https://upload.wikimedia.org/wikipedia/commons/3/3b/OOjs_UI_icon_alert-warning.svg);
	background-size: 25px;
	border-color: #fc3;
	min-height: 25px;
}

.note-error {
	background-color: #fee7e6;
	color: #333;
	/* [[File:OOjs_UI_icon_notice-destructive.svg]] */
	background-image: url(https://upload.wikimedia.org/wikipedia/commons/b/bf/OOjs_UI_icon_notice-destructive.svg);
	background-size: 25px;
	border-color: #c33;
	min-height: 25px;
}

@media screen {
	html.skin-theme-clientpref-night .note {
		background-color: transparent;
	    color: inherit;
	}
}

@media screen and (prefers-color-scheme: dark) {
    /* automatic mode */
	html.skin-theme-clientpref-os .note {
		background-color: transparent;
    	color: inherit;
	}
}